Free / Time Limited / Professional
GemBox.PdfViewer has three working modes:
Every working mode uses the same JavaScript and CSS files and delivers the same performance and set of features, but has some restrictions (except for the Professional mode).
Before using any other member of GemBox.PdfViewer, you must call a The Free mode delivers the same performance and features as the Professional mode but displays a watermark after the first two pages. You can use the Free mode for any purpose, including use in commercial applications. You can use the Time Limited mode to evaluate the viewer without any limitations. To set the mode to Time Limited, you need to use a temporary or time-limited key, which you can get by contacting us. The limitation of Time Limited mode is that it can be used only for 30 days. To set the mode to Professional, you need to use a professional key which you can get by purchasing a license. The Professional mode has no limitations, and the professional keys are perpetual (they can be used forever). Important, every developer working on an application that uses the GemBox component in Professional mode, must be covered with a license. The professional keys are uniquely generated for each license and must be kept confidential. For more information, please read the FAQ page and the product's EULA. Please make sure that your license is not publicly accessible.GemBoxPdfViewer.setLicense method to set the working mode.Free
// Set license key to use GemBox.PdfViewer in a Free mode.
GemBoxPdfViewer.setLicense("FREE-LIMITED-KEY");
Time Limited
// Set license key to use GemBox.PdfViewer in a Time Limited mode.
GemBoxPdfViewer.setLicense("PJ−<START DATE>−<END DATE>-XXXXXXXXXX");Professional
// Set license key to use GemBox.PdfViewer in a Professional mode.
GemBoxPdfViewer.setLicense("XXXXXXXXXX");
